In this 2011 photo provided courtesy of Alex Johnson, the Okee Dokee Brothers, Joe Mailander, right, and Justin Lansing pose for a photo along the Mississippi River. The Minneapolis duo has been ... more 

In this 2011 photo provided courtesy of Alex Johnson, the Okee Dokee Brothers, Joe Mailander, right, and Justin Lansing pose for a photo along the Mississippi River. The Minneapolis duo has been nominated for a Grammy Award for best children's album. (AP Photo/Courtesy of Alex Johnson) less